Competition between Pressure and Gravity Confinement in Lyman-Alpha Forest Observations

Jane C. Charlton, Edwin E. Salpeter, Suzanne M. Linder

A break in the distribution function of Ly$\alpha$ clouds (at a typical redshift of $2.5$) has been reported by Petitjean et al. (1993). This feature is what would be expected from a tr…